X-ray apparatus.



l. B. WANTZ.

X-RAY APPARATUS.

APPLICATION FILED Nov. 5. m4.

1,242,498. Patented 00u 9,1917.

9 SHEETS-SHEET I.

J. B. WANTZ.

X-RAY APPARATUS.

APPLICATION FILED Nov. 5. 1914.

'Patented Oct. 9,1917.

9 SHEETS-SHEET 2 NvENToR mus B. WHNTZ WWNESSES U WM HTTOR N EY 5 I. B. WANTZ.

X-RAY APPARATUS.

APPLICATION msnuov. 5. 1914.v

Patented oct. 9,191?.

9 SHEETS-SHEET 3.

L wANz. X-RAY APPARATUS.l

APPLICATION FILED NOV- 5. |914.

Patented Oct. 9, 1917.

9 SHEETS-SHEET 4.

H 2 O W IOI WITNEsEs J. B. WANTZ.

X-RAY APPARATUS.

APPLICATION msn Nov. 5, |914.

9 SHEETS-SHEET 5.

rrrrrr rrrr rrrrrr r r NVENTOR WITNESSES n Patented Oct. 9, 1917.

HTTORNEYS J. B. WANTZ. x-RAY APPARATUS.

APPLICATION FILED NOV. 5. 1914.

Patented Oct. 9, 1917.

9 'SHEETS-#MEET 6.

J. B. WANTZ.

X-RAY APPARATUS.

APPLICATION FILED Nov. 5. |914.

1,242,498. Patented OCI. 9,1917.

9 SHEETS-SHEET 7.

WITNESSES i NVENTOR JULI s E. WFINTZ ATTORNEYS J. B. WANTZ.

X-RAY APPARATUS.-

APPLICATION mso Nov. 5, 1914.

Patented Oct. 9, 1917.

9 SHEETS*SHEET 8.

N VENTOR m5 B. WANT? WITNESSES l. B. WANTZ.

X-RAY APPARATUS.

APPLICATION FILED Nov. 5, I9I4.

1,242,498. Patented oct. 9,1917.

9 SHEETS-SHEET 9.

FIQ. BI

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WITNESSES WENTORI ZQM JULUJS B. )NIINTZ HT'TORN E-YS UNITED sTATEs PATENT oEEioE.

JULIUSB. WANTZ, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, T VICTOR ELECTRIC CORPORATION, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW' e YORK.

Specification of Letters Patent.

X-EAY APPARATUS.

Application led November 5, 1914. Serial No. 879,462.

To all whom t may concern.'

Be-it known 'that-I, JULIUs B.- WANTZ, citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and ,useful Improvement in X-Ray `Apparatus, of which the following is a specification.

My invention relates more particularly to A Vwhat are ordinarily termed X-ray tables for supporting a patient, either for stereoscopic examination or for the taking of X-ray pictures. 1

My primary object is to-provide improvementsin tables of this character whereby a table of compact form adapted to be oper-A ated in various ways for 'either stereoscopic or picture 7work may bevprovided. Another object of my invention is to provide a construction of table whereby the various operations required Yin stereoscopic work and the t'aking of pictures, may be quickly and readily performed and with the minimum inconlcontainer or housing supported on the main portion of the table, portions thereof being broken away .to disclose interior details. Fig. 2a is an enlarged section taken at the lines 2a on Figs. 1 and 2 and viewed in the direction of the arrow.l Fig. 2b is a perspective view showing in greater detail the means for gaging, in both a lateral and longitudinal direction, the shifting of the tube-box for stereoscopic work. yFig. 3' is a section taken at the line. 3 on Fig. 2 and viewed 1n the direction of the arrow. Fig. 4 is a section taken at theline 4 on Fig. 2 vand viewed inthe direction of the arrow. 'Fig. 5 is an enlarged section taken at the line 5 on Fig. 2 and viewed in the direction ofthe arrow, this view showing in plann a portion of the shutter mechanism coperating with the .X- rav tube. Fig. 6 is a view in side elevation ofthe mechanism illustrated in Fig. 5. .Fig 7 is an enlarged section taken at the line 7 on Fig. 2 and viewed in the direction of the arrow. Fig. 8 is a view in elevation of the combined shutter, means for controlling one of the circuits of the lamp, and means whereby the shiftable casing Vfor X-ray tube may be moved on the table, a portion of this tional of the holder at the left-hand side of Fig. 9, for one of the ends of the X-ray tube. Fig. 11 is a similar View of the holder at the other sidevof Fig. 9 for the other end of the X-ray tube. Fig. 12 is a plan view of the entire table with certain parts shown in section. Fig. 13 is a side view of the complete table, with a portion thereofbroken away, this showing the side of the table opposite to that illustrated in Fig. 1. Fig.' 14 is a section taken at the line 14 on Fig. 13 and viewed in the direction of the arrow, this view showing by full lines the position occupied by the plate-carrying leaf of the table and by dotted lines one of the positions which this leaf may be caused to' occupy relative to the top of the main portion of the table. Fig. 15 is a view similar to Fig. 14 showing by full and dotted lines other porateted oet. 9, 1917.

sitions which the leaf may occupy. Fig. 16

F,-ig. 18 is an end view of the structure shown 'p in Fig. 17. Fig. 19 is an enlarged sectionv taken at the line 19 -on Fig. 17 and viewed in the direction ofthe arrow; Fig. 20 is an enlarged'se'ction taken at the line 20 on Fig.

17 and viewed in the direction of the arrow. Fig. 21 is a plan view of the plate-supporting carriage carried by the leaf'of thetable.

Fig. 22 is a view in side elevation of the carriage shown in Fig. 21. Fig. 23 is a plan view of a slide for supporting plates adapted to coperate with the carriage -of Fig. 21. Fig. 24 is a view in side elevation of the holder shown in Fig. 23, and Fig. 25, a view in elevation partly sectional of oneend of the leaf of the table and the supporting mechanism therefor.

The main portion of the table is formed of a frame-work comprising uprights 30, cross-pieces 31 and 32, and a table-top 33, preferably of amaterial transparent to X- rays, there being provided at one end of the table spaced uprights 34 through which the current-conducting wires, hereinafter -referred to, extend. The side rails 31 carry 4inwardly extending anges 35 on which rails 36 are mounted, these rails serving as guides for rollers 37 provided in pairs at opposite sides of a platform 38, which is -provided with parallel rails 39 extending transversely of the rails 36. The rails 39 'form guides for rollers 40 which are supported in pairs on a casing 41, of material preferably opaque to X-rays, it being understood from the foregoing description that the casing 41 is thus free to be shifted lengthwise of the main portion of the table an crosswise thereof, as desired, thus per-Y` mitting the casing to be'positioned at any desired point lengthwise or transversely of' themain portion of the table, buffer springs 42 provided on certain of the uprights 30 coperating with bumpers 43 for cushioning the casing 41 at the ends of its movement lengthwise of the table, and buffer springs 44 on the platform 38 being adapted tocoperate with a bumper block 45 carried by the bottom of the casing and extending into an opening 46 in said platform, whereby the casing 41 may be cushioned at the ends of -its movement transversely of the table.

The casing 41 is adapted to house the X- raytube for'use in connection with the table, such a tube being represented by `dotted lines at`47 (Fig. 2) and supported from the top of the casing 41 'preferably m the following manner: Mounted on a slide 48 adapted to be introduced into the casing. 41 through its door-controlled end 49 to en` .gage at itsedges with flanges 50 extending lengthwise of the casing 41, and adapted to engage at one end with the spring-cli 51 secured to the underside of the top o the casing41 for' holding said. slide in position, are depending members spaced apart for engaging the ends of the tube 47. These members which are ofv similar construction each comprises a member 52 secured to the underside of the vslide 48 and a-sectionA 53 opposing the section 52. A` pin 54 depends in 54 4 into registration at its recess 59vwitlt e pin 58, it being understood that when the section 53 is pulled down against the resistance of the spring 56, sufliciently far to cause the pin 58 to be withdrawn from the recess 59, the section 53 may be swung on the pin 54 as a pivot. In the 'case of the holder for the large end of the tube 4/7, said holder being represented in Fig. 11, the same general' arrangement of parts as just explained in connection with the holder for the small end of the tube, is employed, excepting that the pins 54 and 58 in the case of the construction illustrated in Fig. 11 are slightly longer than the ins 54 and 58\ of the construction illustrated in Fi 10, and a Ispacer sleeve 60 is employed., the case of both of these holder devices the opposed faces of the sections 52 and 53 are preferably cut away at an angle as represented at 61 to afford a recess-between the sections in'to which centering pins 62 of resilient material, as for example rubber, carried by these sections project, this feature of the construction causing the tube 47 -to become centered on the slide 48 upon the act of 'assembling the tube with the holder 'devices, the sectlons 53 of which serve to sus4 are adapted to tubes having ends of dierent diameters. N

The slide 48 directly above the tube 47 is either cut away to permit of the passage through the'same of X-rays from the tube, or else is formed of material transparent to X-rays, and the top of the casing 41 immediately above the tube 47 likewise either contains an opening, as for example, of the size illustrated at 63, or is of a materialv transparent to X-rays. t

It is'desirable that means be provided for varying the area against which the rays are directed, and in the preferred illustrated embodiment of my invention these means are in the form of shutters, a description of which is as follows: Mounted on posts 64 rising from lthe top of the casing 4 1. and spaced from the top of the casing and from each other. by spacers 65 and 66, are plates 67 'and 68 formed of material opaque to X-rays with registering openings 69 therein. Coperating with the opening 69, in the plate 67, at one side of the latter for varyin its dimensions in one direction, are

slides 1 and 72 which areixed in parallel carry pins 7 and 78, respectively, Awhich'lo with a link 84 connected with the means hereinafter described for rocking the member 81 to shift the plates 71 and- 72 toward -or away from each other, depending upon the direction the member 81 is' shifted. The other side of plate 67 carries mechanism substantially of the same construction as i that carried/by the iirst side of the plate 67,

for varying the dimension of the opening 569 in one direction, but at right angles to the direction in the case of the construction shown in Fig. 7. This mechanism c-omprises plates 85 and 86 fixed on bars 87 and i 88, respectively, guided by headed pins 89 on the plate 67, to move parallel with each other, the free ends of the plates 85 and 86 'Y being guided; by headed pins 90. The bars 87 and 88 carry pins 91 and 92, respectively,

. which enter slots 93aland 94a, respectively,

in the ends of a rock member 93 pivoted as indicated' at 94 to the plate 67, this rock member being pivotally connected as indi-A cated at 95 to an off-set extension 96 on the member 93, with a link 97 connected with mechanism hereinafter describedfor shifting it to shift the plates 85 andl 86 toward and away from each other, depending upon the direction in which the member 93 is turned. The casing 4 1 carries a laterally extending fraine`98 braced asindicatedat 99, this frame being supported on the top of the casing'41 through the medium of lscrews 100 passing through spacers 101'surlrounding the screws and interposed between the frame and the top of thecasing. The `outer end of the casing is provided with an upwardly extending seating member 102 containing an interior sleeve 103 surrounding telescoped sleeves 104 and 105, .the latter being independently rotatable in the sleeve 103. The sleeve 104 at its upper end is provided with a hand-gripping head 106, affording a shoulder 107 which opposes the upper end of the sleeve 103, and at its lower end carries a disk 108 which opposes the lower end of the sleeve 103, this disk bei-ng connected at a point eccentric of its axis,with the -outer end of the link 97 ,'as

indicated at 109, whereby this link may be` shiftedin either direction by turning the sleeve 104. The innermost sleeve has a hand-gripping head 110 providmg a shoulder 111 which opposes the upper end of thesleeve 104, a collar 112 fixed on the lower.

end of the sleeve 105 opposing the disk 108. The collar 112 is` provided with an-extension 113 to the outer end of which the outer end of the link 84 is pivotally connected, as in'- dicated at 114, whereby this link may be 'adjusted lengthwise in either direction by turning the sleeve 105. A cord 114a exproject.

tends upwardly through the opening in the sleeve 105 and is equipped with abutton 115, this cord being provided for a purpose hereinafter explained. It will be understood from ,the foregoing that the sleeves 104 and 105 are independently rotatable and thus thel slides 71 and 72 and slides 85 and 86 may be adjusted independently of each other to vary the size and shape ofthe openin through which the rays from the tube 4 In the particular arrangement illustrated, the wires for 'conducting' the current to the tube 47 connect with binding p 1,17, connected with wires 118 and 119, respectively, which extend through 'insulated conduits 120 in the uprights 34, pne of .said conduits only being shown. TheV wire 118 is electrically connected with ya tautening device 1.21, havinga wire 122 reeled thereon and constructed to cause the wires 118 and 122 to be in electrical contact as is well understood in the art, the wire 122 beingv fined in a sleeve124 of insulating material located in an opening 125 in one end of the 'casing 41, the inner end of the bar 123 carrying a ,spring-contact finger 125"il which engages one of the terminals of the tube 47 when the latter is positioned -in the case 41, as hereinbefore explained. The other terminal of the tube 47 is connected through the i medium of a flexible electrical connector 126 with a wire 127 extending through an insulated sleeve 128 fixed in an opening 129 in the bottom of the casing 41, the wire 127 being connected with one end of a horizontally extending bar 130, the opposite end of which is fixed in a depending brace 131 secured to the bottom of the casing 41, this end of the bar connecting with a wire `(not shown) which connects witha tauten- -mg device 132 of the same construction as the device 121, and electrically connected with the Wire 119.

It being desirable under certain conditions to reduce the vacuum of the tube, to accomplish which the tube 47 is,4in accordance with common practice, provided with a tube-extension 133 containing a chemical (not shown) which when current is passed therethrough lproduces a gas, II provide means whereby the current instead of passing through the wire 126 will pass through the tube-extension 133, -this being accomplished by providing a contact-finger 134, fixed on a disk 135, pivoted as indicated at 136 to th platform 38. When the disk is rotate from the position representedin Fig. 4 in anti-clockwise direction, it moves the -contact 134 into engagement with the bar 130, thereby causing the current to pass through the tube-extension 133 for the purpose above stated. -As a convenient means for operating the disk 135, I wind about its periphery the free end of the cord 114", which has the button 115, as hereinbefore described, whereby upon pulling up on the button 115 the contact finger 134 is moved into engagement with the bar 130, the disk 135 containing a coiled spring 137 `which serves 'to automatically return the disk to a position in which the contact-finger 134 occupies the full line position represented in Fig. 4 when the operator releases the pull on the button 115.

It will be understood from the foregoing that the device formed in part of the various telescoping sleeves hereinbefore described,

serves as a central control not onlyl for adjusting the elements of the shutter and controlling the direction of the current through the tube 47, but also in that it is in the nature of a handle device, serving to rmit the operator by grasping it to shift the tubecontaining casing 41 on the main portion of the table to any desirable position, this featureY of the construction being of great advantage in practice, as will be readily understood by those skilled in the art. l

The universal adjustment of the casing 41 in a horizontal plane permits the tube to be moved lengthwise, and transversely of the table, at will, and thus `the operator may, by shifting the casing 41 on its guides, cause the tube to be positioned at any desirable point beneath the patient, or permits the operator to move the tube through such paths that a complete examination of the patient may be effected.

In the preferred illustrated embodiment of my invention, provision is made for gaging the shifting of the casin 41 either lengthwise, or transversely, of t e table for use in taking stereoscopic pictures, in which case the table, in so far as above described, will coperate with plate-shifting means as hereinafter described. The aging means for lateral adjustment referred-to comprises a bar 138 supported to extend transversely ofthe guides .36, on extensions 139 carried by the platform 38 and for longitudinal adjustment, a bar 140 extending lengthwise of the guides 36 and supported at opposite ends on opposing uprights 30.` A sleeve 141 is adjustable along each bar 138 and 140 and is adapted to be clamped in position on the bar which it surrounds by a set-screw 142, this sleeve having a scale thereon calibrated in inches, as represented at 143, and collars 144 and 145 adjustable along the sleeve 141 and adapted-to be held in position` of adjustment by set-screws 146, screwing against the sleeve 141. The platform 38 is provided with a lug 147 into the path of movement of which, when the plat orm 38 is shifted on the guides 39, the collars144 and 145 on the rod 138, extend, assuming that the setscrews 142 and 146 are adjusted as stated,

the platform at its side carrying a lug 148 into the path of which the collars 144 and 145 on `the rod 140 extend when the setscrews 142kand 146 are adjusted as stated, it being understood from the foregoing that if the takin of a stereoscopic picture is to be effected y making the second exposure by shifting thev tube transversely of the table, the sleeve141 and collars 144 and 1,45

`on the rod 138 will be preliminarily adjusted to the proper positionsfor restricting ythe shifting of the casing 41 transversely for use in taking pictures, either stereoscopic or otherwise, of patients placed en the table-top 33, -or for use in taking pictures of patients placed upon the leaf after y stereosco ic examination on the table-top 33.

This lea isrepresented in Figs. 14, 15 and 16 at 149, and is formed of a frame-work 150, comprising parallel channeled side members 151, end cross-pieces 152, braced as indicated to the side pieces 151, a crossbrace 153, and a covering 154 for the frame having sections 155 and 156 atvits opposite ends fbrmed of material opaque to X-rays with an intermediate section 157 o'f a material transparent to X-rays. The leaf thus formed is provided at its opposite ends near one marginal edge with disk-extensions 158 in which pins 159 extending lengthwise of the leaf are securely fixed, as by pins 160 (Fig. 25). The outer ends of the pins 159, which are in effect stub-shafts, are screwthreaded as indicated at 161 and extend at their screw-threaded ends through heads 162 provided on the upper ends of verticall movable members 163 supported to be a I justable up and down relative to the4 tabletop 33, in guide-ways 164 secured to the uprights-3O at one side of the main portion of the table. The outer ends of the shafts 159 havescrewed thereon nuts 165 provided With handle-sections 166, and washers 167 are interposed between thenuts 165 and the outer recessed ends of the heads 162. The

construction just described is provided forl the purpose of permitting the leaf 149 to be rotated upon the supporting members 163 to any desirable position relative to the table-top 33 and clamped in such adjusted' position, this beingefected by tightening up the nuts 165.

The supporting members 163 are each formed of a relatively long upper section 168 and a relatively short lower section 169 pivotally connected together as represented that the members 163 may be adjusted to such'an elevation that the4 section 168 there. of will remain within the guides 164, in

which case the pivotally connected sections of these members will remain inalinement, .or that the members 163may be adjusted to such .an elevation that the sections 169 thereof only will be in the guides 164, thus permitting the sections 168 to` be swung at angles to the sections 169|for a purpose hereinafter described.

The uprights 163 may. be held in adj usted position by any suitable means, it being desirable that those illustrated be employed, the following being a description of the same: One edge of each of the sections 168and 169 carries ratchet teeth 173 adapt-- ed to engage with a pawl 174, one adjacent to each guide 164, these pawls operating through openings 175 in the guides and pivotally connected indicated at 176 at their outer ends to one arm of .a bell-crank lever 177 pivotally supported as indicated at 178 on a bracket 179 on the adjacent guide 164, the arm 180 of eachbell-crank being connected with a cable 181 for actuating the bell-crank 177 against the .action of a spring 182 interposed between the bracket 179 and a third arm 183 on the bell-crank 177, for withdrawing the pawl 174 from engagement with the teeth 173 ,when it is desired.

to lower the leaf, it being understood that iin lifting the leaf 149, the pawls 174 automatically operate to hold the leaf in vertically adjusted position until released by j pulling on the cables 181, as above stated.

Coperating with the frame 150 of the leaf is a carriage 184 supported at rollers on guides 186 provided in the channels ofthe frame members 151, whereby these guides extend longitudinally of the leaf, the carriage 184 which is t-hus adapted to be shifted on the frame 150 lengthwise thereof, is

formed of side members 187, end members 188 connected therewith and braced as indicated at 189, and a cross-member 190. Cooperating with 9the carriage is a slide 191 preferably formed of sections 1 92 hmgedtogether as indicated at 193, thls slide being provided with clip devices 194 adapted to be adjustably positioned onthe sections 192 for clamping a plate such as that represented at 195 against the plate 191 by engagement of the spring-fingers 196 onv the clips and adapted to clamp a plate-holder such as that represented at 197 and containing a plateV (not shown) to the plate 191 at the eXtensions 198 of the clips, this'being the general type of device which is more fully illus-` vv trated and described in my co-pending application Serial No. 818,926, filed February 16, 1914. In use, the slide 191a'ft'er having .an X-ray plate or plates applied thereto as stated, would be moved with the carriage 184 to theposition illustrated in Fig. 17.

In the taking of stereoscopic pictures, it is desirable that after one exposure is made and the X-ray tube shifted to the position for making the second exposure, the second plate beA shifted to occupy the place previously occupied by the first plate, and this is usually accomplished `by 'spring-actuated mechanism which is releasably held iny oney position during the making of the first eX- posure and thereafter released to drive the carriage to a position in which the second plate will occupy the space previously occupied by the first plate. In the construction illustrated, this result is accomplished by connecting the carriage 184 with a coiled spring 199, connected with the cross-piece 153, with a projection 200 on one side of the carriage which is adapted to interlock' with a pin 201 on the frame 150 when the carriage is shifted to the right to the position illustrated in Fig. 17, wherein the first plate on the slide 191 registers with the section 157, this pin being backed `up-by a spring 202 which causes it to normally project into thepath of movement of the projection 200, and being withdrawable from engagement with said projection by drawing on a cable 203 connected with the` pin 201, means being provided for cushioning the movement of the carriage 184 to the left in Fig. 17 under the Aaction of the spring 199 .I

when the pin 201 is released, and for limiting the movement of said carriage under the action of said spring to properly position the second plate in the-space previously i nected with the right-hand end of the car- Aoccupied by the first plate, the lllustrated riage 184 in Fig. 17. The rear end of the cylinder contains an inlet 207 controlled by an inwardly opening check-valvefthe cylinder being provided with a valved' outlet at which the carriage moves when propelled by the spring 199, as hereinbefore stated, the adjustment ofrthe valve at the outlet 209 regulating the speed, the carriage being brought to a stop for properly positioning the second plate, upon withdrawing the pin 201 from engagement with the projection 200 by the spring 205a carried by the piston i 209. The piston vand cylinder mechanism just described operates to regulate the speed use. The dotted position of the leaf shows eEsT AvAlLAeLE coP 205 engaging the bottomof the cylinder 204 carried on the frame 151.` As hereinbefore stated, the plate-carrying leaf 149 may be caused to assume any one of a number of positions relative to the table-top 33, b adjustin the leaf at its pivotal connections with t e members 163, and by adjusting these last referred to members as hereinbefore stated. In Figs. 14, 15 and 16, I have shown four positions which the leaf may'be caused to occupy when in operative relation to the table-top 33, these being 'given merely as examples.' In Fig. 14, the full -line position of the leaf 149 represents the latter folded out of the Way when not in it extended in line with the table-top 33. In this position, it presents thel advantage of obviating .the necessity of lifting the patient from one table Where stereoscopic examination takes place, to another table Where the pictures are taken. In the arrangement shown, the operator may make stereoscopic examination of the patient kWhile on' 'the table-top 33, using-a screen in accord ance; with common practicer Upon completing the examination, the patient may be merely shifted to the leaf 149 and by using above the leaf 149 as by an X-ray stand not shown) such as is usually employed.` an

exposure of the plate or plates. as the case may be, carried by the leaf 149, may be er",- fected. The leaf 149- in the full. line position represented in Fig. 15 is positioned for the making of a single picture lor stereoseopic pictures by employing the Iii-ray tube in the casing 41 beneath the table-top In this case the uprights 163 are adjusted to the desired height and the leaf swung on its trunnions to a horizontal position to extend above a patient on the table 33, the pictures being taken on the plate or plates, as the case may be, carried by the leaf 149. The; dotted line position of the leaf in Fig. 15 illustrates how this leaf may be used to take a picture of a patient when it is desired that the portion to be photographed be erect.

In this case the leaf is vadjusted to extend vertically permitting the patient to lean a inst it, in which case it would coperate with an X-ray tube which would be brought into properl yposition on the op osite side of the atient, as for example, an f-ray tube (not slEoWn) mounted on a portable holder generally employed. This feature of adjustment ofthe leaf 149 also avoids the necessity of lifting a patient from one table to another, asa stereoscopic examination of the patient may be made While reclining on.

the table 33 and by merely raising the patient to position him against the leaf 149, a picture may be i-takeu.

Fig. 16 shows a position into which the leaf'149 may be folded Where itis desired tioned above the patient, as by using a tube supported on a portable holder as that hereinbefore referred to. In this position of the leaf,'the uprights 163 are raised to a position in which the sections 168 are lifted clear of the guides 164 and swung toward the table-top into horizontal position, the leaf being turned backwardly at its trunnions to rest at the disk-heads 158 and feet 210, on the table-top 33. It will be understood from the foregoing that the carriage supported in the leaf 149 is free to be operated in any of the positions of the leaf illustrated.

While I have illustrated and described a certain particular construction 4embodying my inven'tion, I do not Wish to be understood as intending to limit it thereto as the same may be variously modified and altered Without departing from the spirit of my invention. it being my intention to claim my invention as fully and completely as' the prior state of art will permit.

What I claim as new and desire to secure i yby Letters Patent isan X-ray tube which is suitably supported 1. In X-ray apparatus, the combination of a guideequipped member, carriage mounted to move ou said guide and provided with guides, a slide adapted to be telescoped with said last named guides and be disenga ged therefrom` and tube-supporting means on said slide, whereby said slide and the tube carried thereby may be. bodily removed as unitary structure'from said carriage.

2. ln an X-ray table, the combination 'of a suitably supported table-top, guides, on seid tablea carriage mounted to move on said guides, the latter being provided with guides, a slide adapted to be telescoped with the guides on said carriage and be disenga ged therefrom, and tube-supporting means von said slide whereby said slide and the tube carried thereby may be bodily removed as a unitary structure from said carriage.

3. In X-ray apparatus, the combination of a guide-equipped member, a carriage mounted to move on said guide and provided with guides, a slide adapted to be telescoped with. said last-named guides and be disengaged therefrom, and depending members carried by said slide and adapted to support an X-ray tube thereon. whereby said slide and the tube carried thereby may be bodily removed as a unitary structure from said carriage.

,in an K-ray table, the combination of a suitably supported table-top, guides on said table. a carriage mounted to move on said guides and provided with guides. a slide adapted to be telescoped with the guides on said carriage and be disengaged therefrom, and depending members carried by said slide and adapted to support an X-ray tube thereon, whereby said slide and the tube carried thereby may be bodily removed as a unitary structure from said carriage. `5. In X-ray apparatus, the combination of a guide-equipped member, a carriage.

y tube-.supporting means on said slide, wherefing by said slide and the tube carried thereby .may be bodily removed as a unitary strucoperate with a tube on said tube-holding ture from said housing. -Y

6, X-ray tube-supporting means comprising a pair of suitably-supported-spaced meinbers, each formed of opposing sections adapted to clamp the tube-end between the opposing surfaces of said opposing sections, guide-pins at opposite sides of the portions vci said sections which engageth'e tube upon which said sections are` relatively adjustable toward and away "from each other, and yielding means for yieldingly forcing said sections toward each other.

7 X-ray tube-supporting means comprising a pair of suitably-supported spaced members each formed of opposing sections, the opposingl surfaces of ,said sections being recessed, and sections of resilient material set intosockets in said recesses and adapted to engage atv their outer ends opposite sides of a tube-end and draw the latter to a central position. l'

8. X-ray tube-supporting means comprising a pair of suitably-supported spaced.

members each formed of opposing sections, one of said sections being pivoted on, and movable toward and away from, the other thereof, the opposing surfaces of said sections being recessed, yieldable means tending to draw said sections together,l andn means for holding said pivoted section from lturning until said sections are separated a 'predetermined distance yieldablel means. n

9. X-ray tube-supporting meanscomprising Va'pair of suitably-supported spaced members each formed of opposing sections, onefof said sections being pivoted on, and movable toward and away from, the other in opposition to said "thereof, the opposing surfaces of said sec- 55 tions being recessed, a sprin surrounding the pivot'of said pivoted section and adapted to draw said sections together, and means for holding said pivoted section from turnuntil said sections are separated-a predetermined distance in opposition to fsaid spring. 10. In X-ray apparatus, the combination of a supporting member, X-ray-tube-holding means movably supported on said member, shutter mechanism in position to cooperate with a tube on saidV tube-holding l means and movable with the latten and formed of independently operable elements,

anda plurality of independently operative shutter-controllingI means for operating said shutter elements, respectively, and independently of each other, said plurality of shuttercontrolling means being connected with said tube-,holding means, and constructed and arranged to serve as means by which the operator may shift said holding means.

11. In X-ray` apparatus, the combination otV a supporting member, X-ray-tube-holding means movably supported on said member, shutter mechanism. in position to cosaid shutter elements, land serving as a means.

y which the operator may shift said holding means.

12. In X-ray apparatus, the combination of a supporting member, X-ray-tube-holding means movably supported on said member, shutter mechanism in position to co- 1 operate with a tube on said tube-holding means and movable with the latter, and formed of independently operable elements, and a plurality of independently operative shutter-controlling means for operating said shutter elements, respectively, and independently of each other, said plurality of shuttercontrolling means being connected with said tube-holding means, said last named means including telescoped rotatable sleeves, with links connected with said sleeves, respectively, eccentric of the axis of said sleeves and with said shutter elements, said sleeves serving as- .a means by which the operato may shift said holding means. I

,135111 X-ray apparatus, the combination of a rtable, X-ray-tube-holding means movably supported on saidtable, shutter mechanisin. in position t'o 'coperate with a tube on said tube-holding means and movable with the latter and formed of independently operable elements, and shutter-controlling shutter elements, connected with said tubeholding means and constructed and arranged nism in position to coperate with a tube on (means for independently, operating said 1 said tube-holding means and movable with. the latter and formed of independently operable elements, andshutter-controlling means Vfor independently operating said shutter elements, connected with said tube-holding means, said last-named means including telescoped rotatable sleeves with means connected therewith and vWith said shutter elements, respectively, for operating said shutter-elements, and serving as. a means by which the operator may shift said holding means.

15; In X-ray-apparatus, the combination` of a table,X-ray-tube-holding means movably supported on said table, shutter mecha-I nsm in-position to coperate with atube on said tube-holding means and movable with the latter and formed of independently operable elements, and shutter-controlling means for independently operating said shutter elements connected withl said tubeholding means, said last-named means inl lcluding telescoped rotatable sleeves with links connected `with said sleeves, respectively, eccentric of the axis of said sleeves and with said shutter elements, said sleeves serving as a means by which the operator may shift said holding means.

16. In X-ray apparatuaithe combination of a table, X-ray-'tuhe-holding means movably supported on said table, shutter mechanism in'position to coperate with a tube on said tube-holding means and movable with` the latter, a shiftable electrical contact, and shutter-controlling means and means for shifting said Contact grouped together at a. central station` and connected with said tube-holding means.

17. In X-ray apparatus, the combination pf a supporting member, X-ray-tube-holding means movably` supported on said member, shutter mechanism in position to co operate with a tube on said tube-holding means and movable with the latter, a shiftr`able electrical contact, and shutter-controlling means and means for shifting said con'- tact grouped together at a central station" and connected with said tube-holding means and serving as a means by which the operator may shift said holding means.

19. ,In X-ray apparatus, the combination of a table, X-ray-tube-holding means movably supported on said table, shutter mechanism in position to ooperate with a tube on, said tube-holdmg means and movable with the latter, a shiftable electrical contact, and shutter-controlling means and means for shifting said contact grouped together at a central station and connected with said tube-holding means and serving as a means by which the operator may shift said holding means.`

20. In X-ray apparatus, the combination of.a table, X-ray-tube-holding means, movably supported on saidtable, shutter mechanism in position to coperate with a tube on said tube-holding means and movable lwith the latter and formed of independently operable elements. a shiftable electrical contact, and shutter-controlling means for independently operating said shutter'elements,

connected with said tube-holding means, said last-named means including telescoped rotatable sleeves with devices connected therewith and with said shutter elements, respectively, for actuating said elements, and means for shifting saidcontact, including a shiftable member extending into said sleeves and in position to be operated.

` '21. In X-ray apparatus, the combination of a table, X-ray-tube-holding means movably supported on said table, shutter mechanism in position to coperate with a tube on said tube-holding means and movable with the latter and formed of independently operable elements, a shiftable electrical contact, and shutter-controlling means for independently operating said shutter elements, connected with said tube-holding means, said last-named means including telescoped rotatable sleeves With devices connected therewith and with said shutter elements, respectively, and means for shifting said contact, including a cord Which extends through said sleeves.

22. In X-ray apparatus, the combination of a supporting member, X-ray-tube-holding means movably supported on said member, shutter `mechanism in position' to cooperate vvith a tube on said tube-holding means and movable with the latter land formed of independently operableelements, a shiftable electrical contact, and shuttercontrolling means for independently operating said shutter elements, connected with said tube-holding means, said last-named means including telescoped rotatable sleeves with devices connected therewith and with said shutter eleme ts,-respectively, for actugtingsaid elemen s,-and means for shiftingsaidrcontact,'including a shiftable member extending into said sleeves and in position to be operated.4

23. In X-ray apparatus, the combination of a supporting member, X-ray-tube-holding means movably supported on said member, shutter mechanism in position to cooperate Witha tube on said tube-holding means and movable with the latter and formed of independently operable elements,

a shiftable electrical contact, and shuttercontrolling means for independently operating said shutter elements, connected with Vsaid tube-holding means, said last-named means including telescoped rotatable sleeves with devices connected therewith and with ,said shutter elements, respectively, and

shutter mechanism in position to coperate with a tube on said tube-holding means and movable with` the latterV and formed of) independently operable elements, a' shiftable electrical contact, 'and shutter controlling .means for independently operating said shutter elements, connected with said tubeholding means, said last-named means including telescoped rotatable sleeves with de-` vices connected therewith and with said shutter elements, respectively, for actuating said elements, and means for shifting said contact', including a shiftable member extending into s aid sleeves and in position to be operated, said sleeves forming a handle by which said tubeholding means may be shifted, whereby the shifting of the tubeholding means, the actuation o said shutter elements, and the actuation of said means for shifting said contact are grouped together at one point.

25. In X-ray apparatus, the combination of a supporting member, -X-ray-tube-holding means movably supported on said member, shutter mechanism in position to coperate with a tube on said tube-holding means and movable with the latter and `formed of independently operable elements, a shiftable electrical contact and shutter-controlling means for independently operating said shutter elements, connected with said tube-holding means, said last-named means including telescoped rotatable sleeves with devices connected therewith and with said shutter elements, respectively, and means for shifting said contact, including a, cord which extends throughsaid sleeves, said sleeves forming a handle by which saidl tube-holding means may be shifted, whereby the shifting of the tube-holding means, the actuation of said shutter elements, and the actuation of said means for shifting said contact are grouped together at one point.

26. The combination of a main table section constructedY and arranged for. use in fluoroscopic work, an X-ray-plate-supporting-and-shifting member mounted on the table to be movable to a position thereon in which it rests on, and extends substantially coextensive with, said mainv table section and forms a means for supporting a patient and supporting and shiftlng plates. beneath the latter and movable to a position in which said main table section is freed of obstruction to allowA the latter to support a patient.

27. The combination of a main table section constructed and arranged for use in uoroscopic work, an X-ray-plate-supporting-and-shifting member mounted on said main table section, 'the axis of said pivot being in a substantially horizontal plane and above said table top, said member be ing movable to a position in which itrests on and extends substantially coext'ensive with, said main table sectionand forms a means for supporting a patient and supporting and shifting plates beneath the latter, and movable to a position in which said main table section is freed of obstructionl to allow the latter to support a patient.

28. The combination of a main table section constructed and arranged for' use in fluoroscopic work, an X-ray-plate-supporting-and-shifting member mounted on said main table section, the axis of said pivot being in a substantially horizontal plane and above said tabletop, said member being ,movable to a position in which it rests on, and extends substantially coextensive with, said main table section and forms a means for supporting a patient and supporting and shifting plates beneath the latter,

and movable to a position in which said main table section is freed of obstruction to allow the latter to support a patient, and means for holding said member in diilerent positions of angular adjustment about its pivotal support.

29. The combination of a main table section, constructed and arranged for use in fluoroscopic work, an X-ray-plate-supporty ing-and-shifting member mounted on said table section to be bodily raised relative to said table section and be folded to a position at one side of said' main table section for freeing the latter of obstruction to allow i it to support a patient and movable on said main table section to a position in which it rests on, and extends substantially coextensive with, said main table section and forms a means for supporting a patient, and supporting and shifting platesbeneath the latter.

30. -The combination of a main table-section, members adjustable up and down on said main section, and an X-ray-plate-supporting member having pivotal connection with said members in a horizontal plane`to adapt said plate-supporting member \to swing from depending position to a position in which it extends over the top of said main section.

31. rIfhe combination of a main tablesection, supporting members adjustable up'y and down on said main section and each `formed of relatively adjustable sections, and an X- ray-plate-supporting member having pivotal connection with certain of said supporting member sections in a horizontal plane, and means adjusting those of said sections with which said plate-supporting member is pivotally connected for varying the vertical position of said pivotal connection.

3 2. The combination of a main table-section, supporting members adjustable up and down on said main section and formed of pivotally-connected rods, and an Xray plate-supporting `member pivotally connected with the upper ones of said rods, for the purpose set forth. A

33. The combination of a main table-section carrying upright guides, supportingmembers adjustable up and down in saldguides and each formed'of pivotally-connected sections, said members'being adapted to be adjusted toanelevation at whlch the uppermost sections of said members extend free of said guides, and an X-rayplate-supporting member pivotally connected with the upper sections of said supporting-members. A

34; The combination of a main"table-sec tion, members located at one side of said table-section and adjustable up and down thereon, and an- X-ray-plate-supporting member pivotally connected at its extreme l ends to said supporting-members, said supporting-members being constructed and arranged to permit of theI adjustment of said pivotal connection intodilferent positions in a horizontal plane for 4the purpose set forth. A l

35. In X-ray apparatus, the combination of a main table-section, an- X-ray tubeholder mounted on 'said main section to be shiftable thereon in a horizontal plane and supported to extend below the top of said main section, and plate-holding and shifting means pivotall supported on said main section to extend a ove the top of the Latter and movable on said pivot to a position in which the main table section is freed of obstruction for supporting a patient thereon, the axis of said pivot bein in a horizontal plane, for the purpose set orth.

3 X-ray apparatus, the combination of a main table section, an X-ray tube-holding device supported on said mam section to support a tube below the top of said section, and shiftable on` the latter lengthwise and transversely of said main section, and plateholding and shifting means pivotally supported on said main section in a position to extend over the top of the latter and movable on said pivot to a position in which the Y main table section is freed of obstruction for supporting a patient thereon, the axis of said pivot being in a horizontal plane, for the purpose set forth.

37. In an X-ray table, the combination ofl a suitably-supported table-top, a sup ort-for the X-ray`tube supported on the tab e to be longitudinally movable thereon, and means for limiting the movement of said X-ray support longitudinally of the table lfor stereoscopic Work, said means being bodily adjustable for permitting of the said limited l`movement of said X-ray support at different locations in the horizontal plane.

38. In an X-ray table, the combination of a suitably-supported table-top, a support for an X-ray tube supported on the table to be movable thereon in a horizontal plane, a suitably-supported bar, a sleeve mounted on said bar to be shiftablel along the latter and provided with stops adapted to coperate `with said X-ray tube-support for limiting 4be adjusted back and forth relatively to each other, and means for releasably securing said sleeve to'said bar.

40. In a table, they combination with its main section, of a plate-holding member supported on the table and adapted to be moved intoV and out of a position in which it rests upon the table-top, in which position it furnishes a support for a patient, and adapted to be moved into and out of a position in which it extends in substantially parallel relation above the table-top and spaced therefrom.

41. In a table, the combination with its main section, of a plate-holding' member supported on the table and adapted to be moved into Iand out of a position in which it rests upon the table-top, 1n which position it furnishes a support for the patient and into and out of depending position at one side of the table.

42. In a table, the combination with itsl main section,' of a plate-holding member supported'on the table and adapted to be moved into and out of a position 1n which it rests upon the table-top, in which position it furnishes a support for a patient and 'movable into and `out pf dependin position at the side of the table, and a apted to be moved into a 'position in .which it extends substantially parallel with the table-top and' each other, saidshutter-controlling means including telescpping rotatable sleeves with means connected therewith and with said` shutter elements, respectively, for operating said shutter elements.

44. In X-ray apparatus, the combination of X-ray tube-holding means, shutter mechanism in position to coperate with a tube on said tube-holding means and formed of independently operable elements, and a plurality of independently operative shuttercontrolling means for operating said shutter elements, respectively, and independently of each other, said plurality of shutter-controlling means, including telescoped rotatable sleeves, with links connected with said 15 sleeves, respectively, eccentric of the axis of said sleeves and With said shutter elements.

JAMES S; THELEN, E. HUMPHREYS. n 

